Update requirements.txt

requirements.txt

@@ -0,0 +1,21 @@
+pandas==1.4.3
+fastapi==0.85.2
+langchain==0.0.141
+python-multipart==0.0.6
+uvicorn==0.18.3
+openai==0.27.0
+tiktoken==0.3.1
+faiss-cpu==1.7.3
+huggingface-hub==0.12.0
+anthropic==0.2.6
+llama-cpp-python==0.1.32
+pypdf==3.7.1
+filetype==1.2.0
+altair==4.2.2
+tokenizers==0.13.3
+sentence-transformers==2.2.2
+scikit-learn==1.2.1
+llama-index==0.4.35.post1
+streamlit==1.21.0
+gpt-index==0.5.16
+faiss-cpu==1.7.3